Konkad hatjser



Aug. 28, 1928.

K. HAUSER NEEDLE LEASE REED Filed Aug. 20, 1927 I 1 I e, H H J L e @j 11 J: if: if:

121 QQQ 00 a Q .zatuenl'ar Konrad Hauser UNITED STATES PATENT OFFICE.

KONRAD HAUSER, OF HORGEN, SWITZERLAND. v

NEEDLE-LEASE REED.

Application filed August 20, 1927, Serial No.

In the needle lease reeds of known type, commonly used in warping mills, the needles are rigidly connected to the reed frame so that worn needless cannot be interchanged. It is consequently necessary to insert a fresh reed when some needles are worn.

This invention has for its object to avoid this inconvenience. \Vith this object in view the needles having each an eye are loosely inserted into grooves of the rigid frame of the reed and removably but securely held in their mutual positions and in their positions with regard to the frame by means of clamping bars fixed on the frame by screws, strips of elastic material being inserted between said clamping bars and the needles.

An embodiment of the invention is il lustrated, by way of example, in the accompanying drawing, in which Fig. 1 shows a needle lease reed in front" elevation.

Fig. 2 is a longitudinal section through a portion of Fig. 1.

Fig. 3 is a cross section.

Fig 4: is a horizontal cross section through the middle of a row of needles.

Fig. 5 shows in front elevation some needles of modified construction mounted in the frame.

The needle lease reed, according to the invetion, comprises a rigid frame 1 consisting of two horizontal bars 2 and of two vertical stays 3. The bars 2 have vertical grooves 4: of semi-circular cross section arranged in the front surface of the bars over the entire free length of said bars and extending from the upper to the lower edge, and further horizontal threaded holes 5. On each bar 2 1 clamping bar '7 is removably fixed by means of screws 6.

Each clamping bar 7 has in its inner surface a longitudinal groove 9 designed to accommodate a rubber-strip 8 which is of ac curately the same length as the clamping bar 7. The heads of the screws 6 are sunk in bores 10.

In this frame the needles, known per se, and having each an eye at the middle, are clamped so that they are secured in their 214,331, and in Switzerland August 21, 1926.

mutual positions and may be'interchanged at will.

The ends of the needles 11 engage with the vertical groovesd of the bars 2 and are thus spaced uniformly from one end of the frame to the other. The clamping bars 7 are fixed on the horizontal bars 2 by means of the screws 6 in such a manner that the rubber-strips 8 bear on the ends of the needles 11 and hold the same securely in the grooves 4.

The needles 11 can be inserted so that the needles at the left and right of the central needles are gradually turned more and more in comparison with the central needles, as indicated in Fig. 1. Owing to this arrange ment the threads can pass through the eyes 12 of the needles without friction worth mentioning so that they are not damaged.

Several or all needles 11' can be rapidly interchanged after the clamping bars 7 have been loosened or removed from the horizontal bars 2. i

As shown in Fig. 5 each needle 11 can have, besides the eyes 12, two other eyes 13 and l t the one above and the other below the eye 12 and standing at an'angle of 90 to said eyes 12.

I claim A needle-lease reed, comprising in combination a rigid frame consisting of two horizontal bars having in their outer surface a number of vertical grooves of semicircular cross section, vertical stays rigidly connecting said horizontal bars, two clamping bars having each a longitudinal groove in the inner surface, a strip of rubber in said longitudinal groove of each clamping bar, needles having each an eye at the middle inserted with the ends each in one vertical groove of said horizontal bars the needles at the left and right of the central needles being turned so that their eyes stand at a certain angle to the eyes of said central needles, and screws for removably fixing said clamping bars on said horizontal bars so that they securely hold said needles in the vertical grooves of said horizontal bars.

In testimony whereof I affix my signature.

KONRAD HAUSER. 

